// Copyright 2022 The Centipede Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef FUZZTEST_COMMON_UTIL_H_
#define FUZZTEST_COMMON_UTIL_H_

#include <cstddef>
#include <string>
#include <string_view>

#include "./common/defs.h"

namespace fuzztest::internal {

// Returns a printable hash of a byte array. Currently sha1 is used.
std::string Hash(ByteSpan span);
// Same as above, but for std::string_view.
std::string Hash(std::string_view str);
// Hashes are always this many bytes.
inline constexpr size_t kHashLen = 40;

}  // namespace fuzztest::internal

#endif  // FUZZTEST_COMMON_UTIL_H_
